US3468996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing composite polyester yarn that bulks at elevated temperatures
Assignee: EIDP Inc
•
Filing: 1966-03-08
•
Granted: 1969-09-23
•
Expires: 1986-03-08
Abstract
No abstract record available.
Inventors
- 👤 Cecil E Reese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:19
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/18; D01; D01F; D01F6/00; D01F6/58; D01F6/62
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3022132A
Cited
US2980492A
Cited
US3091805A
Cited
US3199281A
Cited
US3216187A
Cited
US3347969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |